adding windows xp to new harddrive

[cilfton]

tried to add xp to new hard drive and xp says my product
key is invalid which i know is wromg because it is
installed on old computer what do i do?

 

[markc]

Either you are not using the original XP CD, or you are
trying to use a Disk that came with an off the shelf PC,
like HP dell gateway etc. Most of them are keyed to that
PC.

You said it is installed on old PC. License doesn't allow
2 installs. you must removed from old PC first.
However, if you borrow and XP CD, and then use the KEY off
another system, the KEY/CD Product type have to match.

Most of the manufacturer versions, have a volume license,
but will only work on the PC they came with.

Mark C